Smut-machine



YHOWLET & WALKER.

Grain Cleaner.

Patented May 9, 1846.

N, PETERlPhMo-Limorlpbr. Washington. D C.

UNITED STATES PATENT OFFICE J. W. HOWLET AND F. M. WALKER, OFGREENSBORO, NORTH CAROLINA.

SlVIUT-MACHINE.

Specification of Letters Patent No. 4,512, dated' May 9, 1846.

To aZZ whom it may concern Be it known that we, J. HowLET and F. M.VALKER, of Greensboro, in the county of Guilford and State of NorthCarolina, have invented a new and improved machine for cleaning wheat ofall impurities and also of strengthening the hull of the same by theapplication of steam thereto; and we do hereby declare the following tobe a full and exact description of the construction and operationthereof, reference being had to the accompanying drawings, making a partof this specification.

Figure l, is a perspective elevation of our machine. Fig. 2 is avertical longitudinal section of the same. Fig. 3, is a perspective viewof revolving disk and parts attached thereto, detached from the machine.Fig. 4, is aperspective view of the under side of the revolving disk andparts attached thereto. Fig. 5, is a perspective view of the under sideof stationary disk, and parts attached to the same. Fig. 6, is aperspective view of steam box.

Ourmachine for cleaning and steaming wheat, is inclosed in a frame ofsuitable form and strength, (as represented in the accompanyingdrawings) constructed in the usual manner, of posts and rails.

A is a drum firmly secured in the frame.

D, is a vertical shaft, passing down through the center of the drum.

C, is a revolving disk secured to the shaft D, and inclosed within thedrum A,

m is a vertical rim surrounding the revolving disk C, and cast solidwith the same.

a, and o, are vertical concentric rings, cast on the face of therevolving disk, and placed at equal distance from each other and the rimm, with which they are concentric. The inner 0r concave surface of therim m, and the rings n, and 0, are fluted with vertical flutes.

E, E, are hollow arms, opening into, and strongly secured opposite eachother, to the rim m. The rings n, and 0, are divided into two equalparts by vertical openings on opposite sides of each other, descendingfrom top to base. The openings in the ring fn., are placed a shortdistance to the left of the openings in the rim m, leading into the armsE E; and the openings in the ring 0,

are placed a short distance to the left of the openings in the ring a.

B, is a stationary disk let into an opening in the top of the drum A,immediately over the revolving disk C, and passing down within the rimfm, of the same, to the top of the flutes on its inner surface. Thestationary disk B, is secured to the top of the drum A, by screwspassing through the projecting arms m, w, m.

it, ZL, 7c, 7c, and Z, Z, are rubbers projecting from the lower side ofthe stationary disk B. The two rubbers Z, Z, pass within the ring o,their outer surfaces are of a convex form, corresponding with theconcave fluted surface of the ring o, and are iiuted in the same manneras the ring. The fluted surfaces of the rubbers Z, Z, are placedsuiiiciently near the concave in the ring o, to break up all smut,cockle, or lumps of earth that may be in the wheat, and also tothoroughly rub and scour the wheat. The rubbers c, 7c, pass between therings 0, and n, their rubbing surfaces are also convex and fluted,corresponding with the concave fluted surface of the ring n; the rubbersle, la,

are placed the same distance from the ringn, that the rubbers Z, Z, arefrom the ring 0. rI'he rubbers 71 h, have convex fluted rubbing surfacescorresponding with the concave fiuted surface of the rim m, and areplaced the same distance from the rim, that the rubbers Z, Z, are to thering 0. The rubbers Z, Z, and Za, 7s, are permanently secured to thedisk vB The rubbers it, 71 have their largest ends secured to boltspassing through the disk B, on which they vibrate; at their other ends,there are projecting bolts y, y, passingup through slots' a, in the diskB, and are secured to the spiral springs a, e, on the top of the disk,which gives a flexible bearing to the rubbers against the concavesurface of the rim m.

The wheat to be cleaned is placed in hopper Q, constructed in the usualmanner, and passes from the same through the opening t, in thestationary disk B, into the center of the revolving disk C, and is firstacted upon by the rubbers Z, Z, and ring 0, it then passes out of theopenings in the ring 0, and isl acted upon by the rubbers Zo, Ze, andring a, it then is forced out of the openings in the ring a, by therubbers 7c, le, and is next rubbed between the rubbers it, h, and therim m; the rubbers ZL, it, forcing it into the openings in the arms E,E. The wheat is thrown with great force from the arms E, E, against thesides of the drum A. The oblique beaters or rakes F, F, beat the wheatafter it falls into the drum A, and also gathers it t0 the centralopening u, surrounding the shaft, through which it frills into the fanV, immediately under the same. The blast of the fan forces the Wheat anddust into the inclined spout H, the dirt and dust is forced up and outat the top of' the spout, and the Wheat by its greater specific.

gravity, falls into the steam box G, on to the Wire grating b. very hotsteam from a generator or steam boiler, is admitted through the openingc', under the rear end of the grating b', which forces any remainingimpurity that may be in the Wheat out through the trap door 9,- on thetop of the steam box, andthe Wheat passes out at the front end of thesteam box, in a Vfit state for immediate grinding; The eect of the steamupon the hull of the Wheat, is to strengthen and toughen it, and causesthe bran to peel from the Wheat in L powerful jet of would be the case,did the Wheat pass directly from the machine'to the `mill stones,Without its being first acted upon by Steam.

VVhtt' We claim as our invention and desire to secure by Letters Patent,is-

The revolving and stationary disks C,-

andB, With the rubbers Z, Z, 7c, la, and h, L, and rings 0, and n, andrim m, combined and operating With each other,landincombinationtherewith,the arms E,`E,` andbeaters F, F, `substantially'inj the manner and for the purpose herein set forth,H J. W. HOWLET. F.M.,WALKER.

Attest:

JOHN A; GILMER, VALENTINE GARLAND.

